diff --git a/app/src/main/kotlin/org/koitharu/kotatsu/core/exceptions/resolve/ExceptionResolver.kt b/app/src/main/kotlin/org/koitharu/kotatsu/core/exceptions/resolve/ExceptionResolver.kt
index 6031e255f..1a9703786 100644
--- a/app/src/main/kotlin/org/koitharu/kotatsu/core/exceptions/resolve/ExceptionResolver.kt
+++ b/app/src/main/kotlin/org/koitharu/kotatsu/core/exceptions/resolve/ExceptionResolver.kt
@@ -20,6 +20,7 @@ import org.koitharu.kotatsu.core.nav.AppRouter
 import org.koitharu.kotatsu.core.nav.router
 import org.koitharu.kotatsu.core.prefs.AppSettings
 import org.koitharu.kotatsu.core.ui.dialog.buildAlertDialog
+import org.koitharu.kotatsu.core.util.ext.isHttpUrl
 import org.koitharu.kotatsu.core.util.ext.restartApplication
 import org.koitharu.kotatsu.parsers.exception.AuthRequiredException
 import org.koitharu.kotatsu.parsers.exception.NotFoundException
@@ -163,7 +164,7 @@ class ExceptionResolver @AssistedInject constructor(
 			is ScrobblerAuthRequiredException,
 			is AuthRequiredException -> R.string.sign_in
 
-			is NotFoundException -> if (e.url.isNotEmpty()) R.string.open_in_browser else 0
+			is NotFoundException -> if (e.url.isHttpUrl()) R.string.open_in_browser else 0
 			is UnsupportedSourceException -> if (e.manga != null) R.string.alternatives else 0
 			is SSLException,
 			is CertPathValidatorException -> R.string.fix
diff --git a/app/src/main/kotlin/org/koitharu/kotatsu/core/ui/dialog/ErrorDetailsDialog.kt b/app/src/main/kotlin/org/koitharu/kotatsu/core/ui/dialog/ErrorDetailsDialog.kt
index 1525ac1e6..4cd234338 100644
--- a/app/src/main/kotlin/org/koitharu/kotatsu/core/ui/dialog/ErrorDetailsDialog.kt
+++ b/app/src/main/kotlin/org/koitharu/kotatsu/core/ui/dialog/ErrorDetailsDialog.kt
@@ -14,6 +14,7 @@ import org.koitharu.kotatsu.core.nav.router
 import org.koitharu.kotatsu.core.ui.AlertDialogFragment
 import org.koitharu.kotatsu.core.util.ext.copyToClipboard
 import org.koitharu.kotatsu.core.util.ext.getCauseUrl
+import org.koitharu.kotatsu.core.util.ext.isHttpUrl
 import org.koitharu.kotatsu.core.util.ext.isReportable
 import org.koitharu.kotatsu.core.util.ext.report
 import org.koitharu.kotatsu.core.util.ext.requireSerializable
@@ -43,7 +44,7 @@ class ErrorDetailsDialog : AlertDialogFragment<DialogErrorDetailsBinding>(), Vie
 		super.onViewBindingCreated(binding, savedInstanceState)
 		binding.buttonBrowser.setOnClickListener(this)
 		binding.textViewSummary.text = exception.message
-		val isUrlAvailable = !exception.getCauseUrl().isNullOrEmpty()
+		val isUrlAvailable = exception.getCauseUrl()?.isHttpUrl() == true
 		binding.buttonBrowser.isVisible = isUrlAvailable
 		binding.textViewBrowser.isVisible = isUrlAvailable
 		binding.textViewDescription.setTextAndVisible(
diff --git a/app/src/main/kotlin/org/koitharu/kotatsu/details/ui/DetailsMenuProvider.kt b/app/src/main/kotlin/org/koitharu/kotatsu/details/ui/DetailsMenuProvider.kt
index be7b35654..b9745130c 100644
--- a/app/src/main/kotlin/org/koitharu/kotatsu/details/ui/DetailsMenuProvider.kt
+++ b/app/src/main/kotlin/org/koitharu/kotatsu/details/ui/DetailsMenuProvider.kt
@@ -16,6 +16,7 @@ import org.koitharu.kotatsu.core.nav.AppRouter
 import org.koitharu.kotatsu.core.nav.router
 import org.koitharu.kotatsu.core.os.AppShortcutManager
 import org.koitharu.kotatsu.core.ui.dialog.buildAlertDialog
+import org.koitharu.kotatsu.core.util.ext.isHttpUrl
 
 class DetailsMenuProvider(
 	private val activity: FragmentActivity,
@@ -36,7 +37,7 @@ class DetailsMenuProvider(
 		menu.findItem(R.id.action_share).isVisible = manga != null && AppRouter.isShareSupported(manga)
 		menu.findItem(R.id.action_save).isVisible = manga?.source != null && manga.source != LocalMangaSource
 		menu.findItem(R.id.action_delete).isVisible = manga?.source == LocalMangaSource
-		menu.findItem(R.id.action_browser).isVisible = manga?.source != LocalMangaSource
+		menu.findItem(R.id.action_browser).isVisible = manga?.publicUrl?.isHttpUrl() == true
 		menu.findItem(R.id.action_alternatives).isVisible = manga?.source != LocalMangaSource
 		menu.findItem(R.id.action_shortcut).isVisible = ShortcutManagerCompat.isRequestPinShortcutSupported(activity)
 		menu.findItem(R.id.action_scrobbling).isVisible = viewModel.isScrobblingAvailable
diff --git a/app/src/main/kotlin/org/koitharu/kotatsu/remotelist/ui/RemoteListFragment.kt b/app/src/main/kotlin/org/koitharu/kotatsu/remotelist/ui/RemoteListFragment.kt
index 382e0035b..53ca229a2 100644
--- a/app/src/main/kotlin/org/koitharu/kotatsu/remotelist/ui/RemoteListFragment.kt
+++ b/app/src/main/kotlin/org/koitharu/kotatsu/remotelist/ui/RemoteListFragment.kt
@@ -18,6 +18,7 @@ import org.koitharu.kotatsu.core.ui.list.ListSelectionController
 import org.koitharu.kotatsu.core.ui.util.MenuInvalidator
 import org.koitharu.kotatsu.core.util.ext.addMenuProvider
 import org.koitharu.kotatsu.core.util.ext.getCauseUrl
+import org.koitharu.kotatsu.core.util.ext.isHttpUrl
 import org.koitharu.kotatsu.core.util.ext.observe
 import org.koitharu.kotatsu.core.util.ext.observeEvent
 import org.koitharu.kotatsu.core.util.ext.withArgs
@@ -87,15 +88,15 @@ class RemoteListFragment : MangaListFragment(), FilterCoordinator.Owner {
 	}
 
 	private fun openInBrowser(url: String?) {
-		if (url.isNullOrEmpty()) {
-			Snackbar.make(requireViewBinding().recyclerView, R.string.operation_not_supported, Snackbar.LENGTH_SHORT)
-				.show()
-		} else {
+		if (url?.isHttpUrl() == true) {
 			router.openBrowser(
 				url = url,
 				source = viewModel.source,
 				title = viewModel.source.getTitle(requireContext()),
 			)
+		} else {
+			Snackbar.make(requireViewBinding().recyclerView, R.string.operation_not_supported, Snackbar.LENGTH_SHORT)
+				.show()
 		}
 	}